This is the 9169th most frequent Korean word.
걱정했다
"Worried" or "was worried."
Here, '걱정했다' is used to express personal concern about a future event.
나는 내일 시험 결과가 나올 것을 걱정했다.
I was worried about the exam results coming out tomorrow.
In this sentence, '걱정했다' conveys concern about the outcome of one's own efforts.
그는 자신의 일이 잘 될지 걱정했다.
He was worried about whether his work would go well.
This usage of '걱정했다' reflects collective concern about another person’s well-being.